"To come here and see people call in from across the United States — it was awesome," Lopez, who helped man the phones as viewers dialed in their donations to UNICEF and the American Red Cross, told Extra.

In addition to taking calls, the stars auctioned off some of their prized possessions.

Actor Jared Leto beat out Seacrest in a bidding war over Larry King's suspenders — and won them for $1000. In addition to the host, P Diddy auctioned off his sunglasses and Abdul brought a copy of the one-of-a-kind book, Michael Jackson OPUS.

"It was wonderful to raise so much money and quickly," Abdul told Extra. "It's just heartfelt."